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Test Name:
Neisseria gonorrhoeae, by Nucleic Acid Amplification, ThinPrep®
- SBMF No:
21252 - Performance Lab Name:
Microbiology - Test Mnemonic:
PAP GC - ABN:
Not required - CPT Code:
87591 - LOINC Code:
43305-2 - Also Known As:
APTIMA® GC Assay
GC NAAT - Also See:
21250 – Chlamydia trachomatis and Neisseria gonorrhoeae, by Nucleic Acid Amplification, ThinPrep® - Spec Type:
Genital tract sample - Spec Container:
Plastic screw-top vial containing 20.0 mL of ThinPrep preservative (PreservCyt® solution) - Pref Vol:
All material from collection device(s) suspended in PreservCyt® solution - Fasting:
No - Patient Prep:
No douches 48-72 hours prior to test
Avoid collection of specimens during menstruation, periods of active bleeding, or inflammatory episodes
Do not use lubricant on the speculum (run speculum under water to ease insertion)
Rinse protective gloves to minimize starch granules - Spec Collect:
First, use a plastic spatula to obtain adequate material from the ectocervix
Rinse spatula in PreservCyt® solution at least 10 times to ensure prompt fixation and cell preservation
Discard the spatula
Next, use the "cytobrush" to sample the endocervix by inserting the brush until only the bottom-most fibers are exposed
Slowly rotate the cytobrush one quarter turn or one half turn in one direction – do not over-rotate
Rinse the cytobrush in the same PreservCyt® solution vial by rotating the device in the solution 10 times while pushing against the vial wall
Discard the cytobrush
Note: Do not place cytobrush in vial as brush may damage ThinPrep processing instrument
Cap the sample vial and tighten until the black torque line on the cap passes the black line on the vial
Print the patient's name on the vial label on the appropriate line
Place a control label from requisition onto the vial adjacent to the patient's name - Spec Process:
Seal vial in plastic specimen bag and place test requisition within outside pocket of bag - Spec Store Transport:
Room temperature - Spec Stability:
21 days (including collection date) room temperature (20-30°C) or refrigerated (2-8°C) - Spec Reject:
Specimen not suspended in vial containing PreservCyt® solution
Specimen smeared on glass slide - Methodology:
Target Capture - Use:
Detect Neisseria gonorrohoeae - Clinical Significance:
Sexually Transmitted Disease (STD)
Reportable Disease - Reference Range:
Negative for Neisseria gonorrhoeae - Critical High Value:
Positive for Neisseria gonorrhoeae - Additional Test Info:
Positives are confirmed by repeat testing.
Note: Culture is recommended for Chlamydia trachomatis and Neisseria gonorrhoeae detection in cases of suspected sexual abuse or suspected failure of therapy. - Day Run:
Mon, Wed, Fri - Time Run:
7:00 am - Time Reported:
5:00 pm - Test Type:
INFECTIOUS ORGANISM
